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Association between passive smoking and GDM stratified by parity.
| Parity | GDM | Non-GDM | Crude OR (95% CI) |
Adjusted OR a (95% CI) |
|---|---|---|---|---|
| No. (%) | No. (%) | |||
| Total | 562 (18.23) | 2521 (81.77) | 1.38 (1.12, 1.68) | 1.37 (1.11, 1.70) |
| Nulliparous | 422 (16.87) | 2079 (83.13) | 1.43 (1.14, 1.80) | 1.45 (1.14, 1.85) |
| Multiparous | 140(24.05) | 442 (75.85) | 1.16 (0.77, 1.77) | 1.14 (0.73, 1.78) |
a Adjusted for age, BMI, ethnicity, education, and occupation.
